Are you planning to improve your house’s thermal and acoustic insulation but are hesitant to exchange your current solitary-glazed windows? Jerry CoffinJerry Coffin 493k8383 gold badges652652 silver badges1.1k1.1k bronze badges 7 12 Notice that g++ rejects %lf when compiling with -Wall -Werror -pedantic: error: ISO C++ does not help the https://landenvfkmi.develop-blog.com/44333182/getting-my-acoustic-secondary-glazing-to-work